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UNITE STAT WOOD, OF BREWERTON, NEW YORK.

IMPROVEMENT IN THREADCUTTERS FOR SEWlNG-MACHINES.

Specification forming part of Letters Patent No. 534,669, dated January7, 1873.

To all whom it may concern:

Be it known that we, CHARLEs J. HENRY, of Tunkhannock, Pennsylvania, andCORNELL J. VOOD, of Brewerton, New Yorlr, have iuvented certainImprovements in Thread-Outters, of which the following is aspecification:

Our invention relates to a thread-cutter for sewingmachines, formed bychanging the shape and sharpening one edge ofthe presserfoot, andproviding it with a guard to protect the thread.

Figure 1 is an elevation representing the needle-bar and presser-foot,and a section of the top of a sewing-machine through the needleplate.Fig. 2 is a plan of upper side of a presser-foot with our improvement.

The cutter is made and. arranged as follows: One of the long edges ofthe presser-foot is cut to a compound curve, substantially asrepresented in Figs. 1 and 2, giving to the part H a sharp edge, whichforms the cutter. To the upper side of the presser-foot thus made weattach the guard G, formed substantially as shown in the drawing, andwhich serves to keep the thread from the cutter H when the latter is notto be used, and to guide the thread against it when it is to be broughtinto requisition.

While the cloth or other material which is to be sewed is going throughthe machine, and it is desired to cut the upper thread, the operator, bya single motion ofthe hand, carries the thread against the cutter, andit is severed.

By the use of our invention the operator is enabled to out the upperthread at pleasure Without loss of time, or the necessity of taking upscissors. The end left in the work is so short that there is no waste ofthread, while the other ends are left in such a position that work maybe at once resumed.

Our'invention differs from that of Cornell J. Wood, patented August 16,1870, in this respect: In the patent the cutter is attached to a springconnected With the presser-foot, while, in this case, the cutter formspart of the presser-foot itself.

That we claim as our invention, and desire

